Insulin-like growth factor 1 (IGF-1) belongs to the insulin family of peptides and acts as a growth factor through conjugating specific receptors. It is widely accepted that IGF-1 exerts endocrine, autocrine and paracrine effect.

• 胰岛素样生长因子-1(insulin-like growth factor,IGF-1)是胰岛素样生长因子家族中的一种,通过与IGF-1受体相结合产生生物学效应,是通过内分泌、自分泌和旁分泌的三种途径分泌的低分子多肽。